Home / 5,074.18-7,612.71-1,787.38

Finding the Fourth Proportional to 5,074.18, 7,612.71 and 1,787.38

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Solution

The fourth proportional to 5,074.18, 7,612.71 and 1,787.38 is: 2,681.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,074.18 : 7,612.71 = 1,787.38 : x
  2. Step 2: Convert to fraction form
    5,074.18/7,612.71 = 1,787.38/x
  3. Step 3: Cross multiply
    5,074.18x = 7,612.71 × 1,787.38
  4. Step 4: Simplify right side
    5,074.18x = 13,606,805.60
  5. Step 5: Solve for x
    x = 13,606,805.60/5,074.18
  6. Step 6: Final answer
    x = 2,681.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.